Use "Standard" option for "Enhanced Tracking Protection" privacy prefs (

#230)

The "Standard" option for the "Enhanced Tracking Protection" [1] (stats
are available at `about:protections`) preference comes with good
default configurations and is now used instead of the "Custom" option to
also prevent sites from breaking due to cookie blocking.

[1]: https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-preview

Closes GH-218

snowblocks/firefox/user.js

@@ -57,6 +57,9 @@ user_pref("browser.bookmarks.openInTabClosesMenu", false);
 /* Disable restoration of the default bookmarks for new sessions. */
 user_pref("browser.bookmarks.restore_default_bookmarks", false);
 
+
+user_pref("browser.contentblocking.category", false);
+
 /*
  * Disallow Firefox to send backlogged crash reports.
  * Available within the UI under: